Gene Fuller wrote:
It appears you missed the primary message of the Corum article.

I'm afraid you missed the point. As long as the frequency
is kept constant, the VF and Z0 of coil stock will be
relatively constant - why wouldn't it be? W8JI missed
the 4 MHz delay through that coil by at least a magnitude.
It is impossible for that delay to be 3 nS. The measured
delay through my 75m bugcatcher coil is 25 nS.
--
73, Cecil http://www.w5dxp.com